Yumen is an important town on the ancient Silk Road. In its vast land of 6.5438+0.38 million hectares, it has left a footprint of people's exchanges around the world for thousands of years. It is the outpost of China's administration of the western regions in history, and has made brilliant contributions to the security and national unity of the frontier fortress of the motherland.

The name "Yumen" is related to Yumen Pass and Jiayuguan Jade in Han Dynasty.

Yumenguan Pass, located about 90km northwest of Dunhuang County, has been an important pass to the western countries since the Han and Wei Dynasties, and it is also the only pass called "Silk Road" with China characteristics by scholars at home and abroad. It was named after the beautiful jade and hetian jade in the western regions were introduced into the Central Plains. After the Six Dynasties, the newly opened North Road was often used to pass through the western regions, and the Yumenguan site moved eastward. Yumenguan in the Tang Dynasty was located in Jinchang County, Guazhou (now in the area of Shuangta in Guazhou County). The Records of Thirteen States by Dunhuang people in the Eastern Jin Dynasty said: "The Han Dynasty ended in Yumenguantun and moved people here, so it was called Yumen County." According to Hanshu? "Shihuozhi" records that the army stationed in Yumenguan at that time was carrying out military reclamation, and some troops reclaimed land around Chijinbao today, and began to be called Yumen Army. After abandoning Homogenization County, Yumen County was established. According to historical records, Wang Zhihuan, a poet in the Tang Dynasty, famously said, "Why blame a willow for a strong flute?". "Spring breeze doesn't reach Yumenguan" does not refer to Yumenguan in Dunhuang, but to Yumenguan in Tang Dynasty, a twin-tower fort near Yumen City. According to the music history of the Song Dynasty "The Jade Ring of Taiping", Yanshou County is in the west of Jiuquan County, Jinshan is in the east, and the jade barrier is also covered by Han. Archaeological Records of the Western Regions also says that there is Jiayuguan 60 miles west of Jiuquan, which is also called Yushan because of its beautiful jade. This place, located in Shi Guan Xia, northwest of Jiayuguan, is the jade base of Han Dynasty. There is a stone gate with a cutting diameter of 20 miles on the mountain. In the past, Shimen was also called Yumen.